Determine how tall and how wide you want the doorway to be.
Fitting a door frame to brick.
Measure the distance between the jambs at the head of the liner and cut a piece of timber the same length.
When placing a door in an opening these doors must be fastened to the base material that is present in this location.
Use a screw 1 inches longer than the thickness of your frame.
Use more wedges to get the jambs upright.
Fit wedges under the sill to push it up against the lintel.
For example a frame made of 2 by lumber would require a 3 inch concrete screw.
In many retrofit applications however it is necessary to remove and replace existing frames in walls that are already in place.
Fix this piece of timber between the jambs at the bottom of the frame.
Metal frames are typically installed before the brick or block is erected.
Use a spirit level to get the sill perfectly horizontal.
By screwing the frame in place you can adjust it by winding the screws in out later and wedging behind it.
If the wall you are fitting to is masonry you ll want to space the screws so they fall in the middle of the bricks or blocks instead because too close to the edge of a brick and it ll just split or shatter.
Drive a inch tapcon style concrete screw through each hole in the frame into the corresponding hole in the brick.
Measure the frame diagonals to ensure that the frame is perfectly square as diagram k.
Use chalk to mark the areas where you want to cut through the brick.
Use a spirit level repeatedly to check the vertical alignment.
Insert the assembled frame into the opening.
To replace a steel frame in a masonry wall special anchors are used to fasten the frame to the surrounding brick or block.
Actually a great way to install doorframes if the pain i have had to go through to get doorframes out that were fixed this way is anything to go by.
Because of their strength and durability steel door frames are often used in masonry walls in place of traditional wooden frames.
Before you make your first cut double check the measurements.
Door frames may range from solid wood to hollow steel.
The timber in the cavity was fixed to the frame first and used in addition to ties that were laid between the courses maybe 3 4 each side and the bricks were laid up to the timber batten.
If you are going to install a door into the frame take into account the exact dimensions of the door when you make your measurements on the wall.